| 21. | Overgrazing may cause erosion, habitat destruction, soil compaction, or reduced biodiversity ( species richness ).
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| 22. | The islands were fumigated to clear the arthropod populations in order to study species richness.
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| 23. | Within this taxon, the Gastropoda have reached their peak in species richness and ecological diversity.
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| 24. | Twelve studies have found a higher population and species richness of carabids on organic systems.
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| 25. | They are native to western and central Africa, with the greatest species richness in Cameroon.
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| 26. | It was discovered that plant species richness in Norwegian meadows is correlated with habitat diversity.
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| 27. | Rio Negro has a very high species richness.
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| 28. | The studies show that species richness does matter,
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| 29. | For example, there is not necessarily a clear or consistent relationship between productivity and species richness.
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| 30. | In fact, species richness is greatest along the highest elevations of the montane rainforests of Luzon.
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